Exam 1 Thoughts

[tilda38]

yeah, the probability questions are were nice looking back at them now, however were rather painful when i was doing them as i had completely forgotten the karnaugh map so made up a whole heap of stuff for that question and for the rest... i'm still kicking myself over stupid mistakes. very glad its over though!!! exam 2, here we come...

[kido_1]

I am superglad its over. Now my calculator can come into good use.
(I think i might be able to get 39/40 for Exam 1). Hopefully a really nice score in exam 2(which i tend to do better in) can fix up my mistakes.....

[Toothpaste]

Exam 2 mends the disappointment.

[tilda38]

nice one kido! pftt, your 1 mark mistake doesn't need too much fixing!! yep, sure is good knowing that if i do good in exam 2 things aren't too bad. great thing is that in exam 2 there's more room for consequential marking!

[tankia]

What did ppl get for the last part of the plane question...i came out with 8/17 which came from (.8x.4)/.68

A plane? There was a plane?

[tilda38]

lol, that was the tree diagram question about flights to melbourne from an island in good or bad weather.

[kido_1]

Yes, there was  a plane question.(Markov)

[Toothpaste]

That plane one was nice.

i know people who did it the other way around... 'fine given on time'(or something) instead of whatever it was.

[maxleng]

yeah lots of people would have got confused on that Q and not use markov for part a) becuase of the 'given'... when i came out i was like "so u used markov for part a right" everyone else "nooo it said given" lolz

[costargh]

=(
I did horribly but by the sounds of it, my entire class did bad. Only two or three students said it was easy.
I will get lots of consequential marks because I did the right working out but got wrong ansers and stupid me put 4/16 instead of 5/16 for the coffee question GRR!

[Odette]

=(
I did horribly but by the sounds of it, my entire class did bad. Only two or three students said it was easy.
I will get lots of consequential marks because I did the right working out but got wrong ansers and stupid me put 4/16 instead of 5/16 for the coffee question GRR!

Aww, good luck on exam 2

[asa.hoshi]

=(
I did horribly but by the sounds of it, my entire class did bad. Only two or three students said it was easy.
I will get lots of consequential marks because I did the right working out but got wrong ansers and stupid me put 4/16 instead of 5/16 for the coffee question GRR!

in that case u wont get consequential marks. u'll get a method mark.

 like u know for the coffee question where it was worth 2 marks. 1 mark is allocated towards your answer and 1 mark is gone to how u approached the question (method).

[asa.hoshi]

how do you do question 8b.? haha

[Mystery]

most if not all of my exam was wrong(highly doubt all), but I knew how to approach everything.

[Matt89]

how do you do question 8b.? haha

I'm 99.9% sure the question was something like:
3f(x-1)+2      (and They told you that f(x) = sin(2π/3)    (the 'π' is supposed to be pi)

Because it was a sin function, i said that its a maximum when f(x-1) = 1

To simplify things, i let a = x-1
So...
f(a) = 1
sin (2πa/3) = 1  
2πa/3 = π/2
2πa = 3π/2
a = 3/4

Therefore, a = x - 1
             3/4 = x - 1
             7/4 = x